package com.imust.springbootproject.web.admin;

import com.imust.springbootproject.po.Blog;
import com.imust.springbootproject.po.User;
import com.imust.springbootproject.service.BlogService;
import com.imust.springbootproject.service.TagService;
import com.imust.springbootproject.service.TypeService;
import com.imust.springbootproject.vo.BlogQuery;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

@Controller
@RequestMapping("/admin")
public class BlogController {
    @Autowired
    private BlogService blogService;
    @Autowired
    private TypeService typeService;
    @Autowired
    private TagService tagService;

    @GetMapping("/blogs")
    public String blogs(@PageableDefault(size = 3, sort = {"id"}, direction = Sort.Direction.DESC) Pageable pageable, BlogQuery blog, Model model){
        model.addAttribute("page", blogService.listBlog(pageable, blog));
        model.addAttribute("types", typeService.listType());
        return "admin/blogs";
    }

    @PostMapping("/blogs/search")
    public String search(@PageableDefault(size = 3, sort = {"id"}, direction = Sort.Direction.DESC) Pageable pageable, BlogQuery blog, Model model){
        model.addAttribute("page", blogService.listBlog(pageable, blog));
        return "admin/blogs :: blogList";
    }

    @GetMapping("/blogs/input")
    public String input(Model model){
        model.addAttribute("types", typeService.listType());
        model.addAttribute("tags", tagService.listTag());

        model.addAttribute("blog", new Blog());
        return "admin/blogs-input";
    }

    @PostMapping("/blogs")
    public String post(Blog blog, HttpServletRequest request, RedirectAttributes attributes){
        HttpSession session = request.getSession();
        blog.setUser((User) session.getAttribute("user"));
        blog.setType(typeService.getType(blog.getType().getId()));
        blog.setTags(tagService.listTag(blog.getTagIds()));
        Blog b;
        if (blog.getId() == null){
            b = blogService.saveBlog(blog);
        }else{
            b = blogService.updateBlog(blog.getId(), blog);
        }

        if (b == null){
            attributes.addAttribute("message", "操作失败");
        }else{
            attributes.addAttribute("message", "操作成功");
        }
        return "redirect:/admin/blogs";
    }

    @GetMapping("/blogs/{id}/input")
    public String editInput(@PathVariable("id") Long id, Model model){
        model.addAttribute("types", typeService.listType());
        model.addAttribute("tags", tagService.listTag());
        Blog blog = blogService.getBlog(id);
        blog.init();
        model.addAttribute("blog", blog);
        return "admin/blogs-input";
    }

    @GetMapping("/blogs/{id}/delete")
    public String deleteBlog(@PathVariable("id") Long id, RedirectAttributes attributes){
        blogService.deleteBlog(id);
        attributes.addAttribute("message", "删除成功");
        return "redirect:/admin/blogs";
    }
}
